Add 72/9 and 20/5
1st number: 8 0/9, 2nd number: 4 0/5
72/9 + 20/5 is 12/1.
Steps for adding fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 5 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
72/9 = 72 × 5/9 × 5 = 360/45 - Likewise, for the 2nd fraction, since 5 × 9 = 45,
20/5 = 20 × 9/5 × 9 = 180/45 - Add the two like fractions:
360/45 + 180/45 = 360 + 180/45 = 540/45 - 540/45 simplified gives 12/1
- So, 72/9 + 20/5 = 12/1
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